Asteroid General Data

2021 UH₉

General information

Preliminary designation	2021 UH₉
Group	Apollo
Absolute magnitude	25.72
Approximate diameter (m)	19
Approximate mass (kg)	1.27·10⁷
Number of observations	40
Arc length (days)	68

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	295.812627
a – orbit major semiaxis (astronomical units)	1.91120100
e – orbit eccentricity	0.48599500
ω – orbit ascending node-perihelion angle (degrees)	352.574028
Ω – longitude of orbit ascending node (degrees)	74.825779
i – orbit inclination to the ecliptic plane (degrees)	2.519416

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	269.756138	1.91021992	0.48740335	348.540065	77.843292	2.296387	0.97917233	2.640132
01/21/1858	272.991546	1.90559994	0.48578139	349.097485	77.144759	2.408475	0.97989495	2.630560
01/29/1887	283.251700	1.90554809	0.48579738	349.316320	77.053015	2.405122	0.97983781	2.630453
02/07/1916	301.985904	1.89872420	0.48330135	350.537010	75.733380	2.590157	0.98106823	2.616336
02/14/1945	334.323318	1.89882321	0.48298916	350.774275	75.649440	2.586361	0.98171219	2.616540
02/22/1974	350.059203	1.91492782	0.48671979	351.801775	75.202437	2.516236	0.98289455	2.649898
03/02/2003	334.867353	1.91400280	0.48670252	352.079357	75.108246	2.512771	0.98245281	2.647979
03/09/2032	321.012633	1.91147359	0.48584674	352.722121	74.805921	2.517869	0.98279038	2.642732
03/17/2061	314.679954	1.90749915	0.48503146	353.502060	74.250760	2.545965	0.98230205	2.634494
03/25/2090	319.834346	1.90572566	0.48535868	353.865853	74.086508	2.544189	0.98076518	2.630820
04/03/2119	327.588054	1.90685061	0.48501922	354.136804	73.960033	2.538256	0.98199143	2.633150
04/10/2148	327.024588	1.91262205	0.48622197	354.639427	73.698862	2.513729	0.98266320	2.645114
04/18/2177	315.434031	1.91317881	0.48590657	355.001216	73.603144	2.506429	0.98355266	2.646269

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